Buttonhole-sewing machine



, Feb. A15 192 7 E. J. RAY

BUTTONHOLE SEWING MACHINE 2 sheets-'sheet 1 Filed Dec.. 20, 1919 Ina X2 Feb. 15, 1927.

E. J. RAY

BUTTONHOLE SEWING MACHINE.

Filed nec, 20, 1919 2 sheets-snee@ 2 ytei'miiied v.by the operator. veiiiently, and preferably is, done vby means Patented Feb. 15, 1927.

stars-s,

ra-5i i E J. gRAY, OF BEVERLY, MASSACHUSETTS, ASSIGNORTO UNIT-ED MACHIN- ,CORPORA'IION, 0F PATERSON, NEW J ERSEELVA CQ-RORATION OF NEW JERSEY.

. BUTTDNHOLE-SEWING MAC'I-IfINE.

Application filed December 20, 1919. j Serial fNo. 346,306.

Vrlhe invention relates to work spacing mechanism `for 4buttonhole sewing machines and moreparticularly to mechanism for automatically spacing Athe work in machines adapted .for sewing a `series of buttonholes in shoe flies.

In buttonhole sewing machines ,provided with means for automatically spacing pieces of work, such as shoe flies, the work is moved Vbetween successive but-tonlioles a distance dependent upon the adjustment or `setting of 7the-spacing mechanism so that an equal spacing of the ,buttonholes is secured and the last vbuttonhole of the series is a definite distance fronithe first lbuttonhole with yany given setting of the spacing mechanism. lt follows, therefore, that with a given setting of the spacing mechanism the .variations in the length of iiies, which ,invariably occurs with the present methods of .manufacturing shoes, will -result in theloca- Vtion of thelast ortop buttonholes at varying distances from .the tops of -the Hies. This is objectionable since itis important, particularly in the better classes of work, that the upper buttonholes ,be definitely located atV Vmechanism i'equisitcf0r locating the last buttonhole of `the series to be sewed at a pre-determiined point on vthe piece -of `work to be operated on. The'requisite adjust-nient is -fpreferably secured by utilizing each piece ,of work to determine the adjustment of the spacing.mechanism whichwill bring the last buttonhole at a point on the work pre-de- This may conof a gage which, after the work has1beeii .located in position for sewing the first-button- -hole, may be brought into register with the point on the work at which the last buttonlioleshould b e located, and a cooperating scale lfor indicating the adjustment of the spacing .mechanism which will bring `this -pointintc register with the buttonhole sewnie'chanisni after. a lcertain `number of biittcnhcles-,have been sewed.

To adapt the mechanism for indicating thesettings foiI sewing different numbers of buttonholes .inthe same length of flies a series of scales may be .arranged tobe selectively 4brought finto vcooperative YVrelation jto the gage.

XVhile the invention relates ,primarily `to buttonhole sewing Ymachines as above indicated cert-ain features are ,of more general application :and may .be ,embodied with advantage in other machines and mechanisms requiring similar or analogous adjustments or settings.

The yvarious features of the invention will be readily understood from an inspection of the accompanying'drawings ,and the .following* detailed description offtlie mechanism .illustrated therein.` Y

fIn tliedrawings Fig. .1 is ,a plan view showing so much'lof a bottonhole sewinginia- .chine and theV automatic work spacingmechanisin therefor as is Anecessary to illustrate the application ofthe vpresent invention thereto. lFig. 2 is a front elevation land Fig. 3 is a .side elevation showing the gage and cooperating scale for indicating the .fadjustinents of the spacing mechanism.

`In the drawings a vpreferred .form -of the .invention 4is shown applied .to the .but-tonhole sewing machine 'fully shown and described yin application Serial No. 187,194, .filed Ang. 20, 1917. This macliineisfprovided lwith a lbuttonhole sewing Ymechanism Vadapted yto-cut and sewV an eye-.ended buttonliole, `and a work .spacing mechanism lfor automatically spacing the work betweensuccessive buttonhole sewing operations, and Icontrolling rmechanism whichstops the .machin-e after a 4predeterniined number of huttonlioles have `been sewed. The'buttonhole sewing .mechanism comprises stitch-.forming mechanism adapted-to form overseam stitches,;tlie.uppei' ,needle of which is indicated at 2, andatravelling work clamp, ythe work supporting plates of which are indicated at 4t, in. Fig. 2. The work clamp is-caifried `on a reciprocating clamp carriageindicated at 6 in Fig. 1, which also carries the `work .carrier 8,

rwhich Iis intermittently moved 'to automati# cally space theworkbetween successive but.- i

tonhole sewing operations. rllhe work carrier Yis provided withV a work supporting .plate l0 on which the shoe fly indicated at 1 2 is @held Vby a .series `of spring clamping fingers carried .by a .bar 16, which may i' .Y the movement of the AWerl:

be operated by the operator to clamp or release the Work. The Work carrier is provided with a curved edge gage 18 against which'the edge of the shoe fly is positioned bythe operator and is also provided with an open slot 20, which registers with the buttonhole zone of the iiy.V Thewvorl carrier is guided during its Work spacing movements Yby fixed rolls 22 and 24 arranged to engage the guiding .slots 26 and 27 formed on the carrier. The slots are so shapedV and the rolls so arranged that the fly is `l'ed by thef carrier in a path corresponding tothe curvature lof the edgeV guide 18 to properly locate the series of buttonholes with relation to the edge of the fly. The mechanism for advancing the Work carrier to space the buttonholes comprises a rack 28 provided with an arm 30 lwhich is connected by a pivot 82 with a block 84 arranged to slide Within a slot 3G in the carrier. The rack is engaged by a gear 38, which is driven from a Worm Wheel of equal diameter through connections which are operated upon by a cam 40 to Vvary the movement imparted to the gear in Vaccordance With the path of movement of the Work carrier so that the requisite movements V*are given tothe carrier to equally space the buttonholes along the irregular curved edge of thefwork. The connections also include a coupling clutchV which may be engaged or vdisengaged by a clamping nut 42 to permit carrier into position to properly locate the iirst buttonhole in the series to be sevved.l The Worm Wheel is engaged' by a Worm 44 which may be turned Y through a full revolution, orlthrough varying fractions of a revolutiomby an adjusti able mechanism connecting the Worin With a rspacingv shaft'` 46. The distance f through which the worm 44 is turned by a revolution of the spacing shaft 46 is determined by the adjustment or setting of' an arm 48, thc free end of Which carries a pin adapted to be enf gaged with any one of a series yot holes in the index plate 52;

In operating this machine the operator places the fly which may or may not haveV Y' been att'ached'to the upper on .the carrier in such position that-its edge lits the edge gage 18 and then operates the nut 42 to disconnect the gear 38 from the underlying worm Wheel so that the carrier may be moved with relation to the spacing mechanism to bring the lowerend of the fly into suchVV position with relation to the serving mechanism that the lower bntt-onhole will he properly located in thelly. The nut 42 is then operc ated to reconnect'the Agear', and therefore the carrier with the kWorniivheel andthe connected spacing mechanism, preparatory to starting the Ymachine to automatically sew and space a number or" buttonholes dei y termined by thewsetting of the mechanism which controls the .stopping of the machine.

In embodying the preferred form of the invention in this machine the location of the' end buttonhole of the series With proper relation to the top edge of the fiy is insured by the provision of a gage adaptedto be brought int-o register With the point on the flyV at which the last buttonhole of the series should be located and indicatingupon a cooperating scale the adjustment of the spacing mechanism requisite 'for locating the last buttonhele at this point in the fly. lVith this mechanism applied to the machine the stitch-forming lmechanism forms in effect a fixed gage Which is brought into register with the point on the upper at which the iirst butto'nhole of' the series is to be located, andthe gage above referred to forms a gage which is brought into register With the point at which the last buttonhole of the series is Y up into a substantially horizontal position` by a spring 58. The slide is mounted for movement on a guide bar arranged above and corresponding in curvature to the edge gage 8 on the Werk carrier.

)rovided with a second linger 62 arranged to register With a scale 64 on aplate G6, which islarranged above and corresponds in curvature to the guide bar and edge gage. The scale is provided with graduations corresponding to the holes in the index plate 52 and similarly marked, the holes in the index plate and the divisions on the scale being numbered O to 24 in the construction shown.

ln order that the gage maybe used to indicatefthe setting ot' the spacing mechanisn'i requisite for sewing varying numbers of buttonholes in the same length of 'fiy the scale plate 66 is provided With a series'o'll scales 64, any one of which .may be brought into register with the linger G2 on the gage carrying slide. To perngiit the inoveii'ient ol the scale plate to bringany of the scales thereon into position to register With the linger (i2 the scale plate mounted to slide vertically on a rod 68 and is held in adjusted position by a spring pressed retaining pin 70 adapted to engage Anotches 72 formed in the red. YA fixed'l finger 74 may Vbe arranged to register With a scale 7G on the scale plate Which-indicates the number ot buttonholes indicated in each scale, G4

Yand Will indicate the setting or adjustment of the mechanism-*Which controls the stop-V The slide is Y ico with the point on the iiy at which the upperv buttonhole should be located. rllhe finger, 62 will then indicate on the scale Gil the proper setting of the arm 48 to properly space a series oiieleven buttoiiholes and locate the last buttonhole of the series at the point on the iiy which registers with the lower end ot' theY linger 54. Assuming that theiinger 62 registers approximately with the division on the scale marked 18 then the pinin the end ot the arm i8 ot' the spacing mechanism should be located in hole 18 ot the index plate 52 to properly position the cleveiibuttonholes in the iy heldin the carrier. lt' a series of nine holes is to be sewed in a ily, the scale plate -will be moved into the position indicated in Fig. 2 and it the fly to be operated upon happens to be the shortest fly within the capacity of the machine the finger 54 will register substantially with the zero mark on the scaleat, as shown iii this ligure when it is in register with the point on the tly at which the top buttonhole should be located. VVith'the pin in the arm d8 in the O of the index plate 52 the work will be moved, at each operation of the spacing mechanism, the least distance within the capacity ot' the mechanismand it will require eight successive operations of the spacing ii'ieclianismto move the worl; the distance between the stitch-forming mechanism and linger 54; indicated in Fig. 2.4

, llihile it is preferred to employ thespecilic construction and arrangement ot parts shown and described in embodying the invention in the buttouhole sewing machine in the application above referred to it will be understood thatl this construction and arrangement is not essential to the broader featuresot the invention and may be varied oi' modiiied as itoiiiid desirable or best suited tothe construction and inodel ot' operation ol the machine to which it is to be applied.

lli/vliet is claimed is: A 1 1. A buttonhole sewing machine having, in combination,buttonhole sewing mechanisin, mechanism for spacing the work to sew a series of buttonholes therein, meansy for adjusting said mechanism to vary the spacing, and means .for enabling an adjustment of the spacing mechanism to be secured requisite 'for locating the irst and last buttonholes of a series at points in the work which are selected prior to' the adjustment and may be varying distances apart,

2. A butto'iihole sewing'macliine having, incombination, buttonhole sewing `mecha-' nism, mechanism for `spacingjthe work to Vsew a series of buttonholes therein, and

means for indicating the Aadjustment ofv the spacing mechanism which will locate thelast buttonhole of the series at a selected point in the work'. Y

3. A buttoiihole sewing machine having, in combination, buttonhole sewing mechanism, mechanism for automatically spacing the work to sew a series of buttonholes therein, and gaging means adapted to be brought into register with the points o n the work at which the lirst and last buttonholes are to be `located fory determining the adjustment of the 'spacing mechanism requisite lfor' positioning the buttonholes at these points.

t. A buttonhole sewing machine having, in combination, buttonliole sewing mechanism, mechanism for automatically spacing the work to sew a-series of buttonholes therein, agage adapted to be brought into register with vthe point on the work at which the last buttonhole is to be located after the work is positioned for the rst buttonliole, and cooperating meansv for determining the adjustmentV oit the spacing mechanism requisite for locating the' last buttonhole at this point.

5. A Vmachine having, in combination, mechanism for operating on' the` work, automatic spacing mechanism, gaging means adapted tof be brought into register with the points on the work at which the'iirst and last of a series of operations of the operating mechanism 'are to be located'for de-v spacing mechanism. K

l6. A machine having, inn combination, ii'iechanisin for operating on the work, work tei-mining the required adjustment of the spacing mechanism, two-relatively movable gages adapted to .beV brought into regis-v4 ter withrpointsf on the work at which the iii'st andthe last oi a series of Voperations of the operating mechanism arefto be located, and a cooperating scale'or indicating the required Aadjustiji'ient,,oit the spacing mechanism.V "i A l i y.

"i". A' machine, having, in combination, mechanism for operatingon the work, work spacing mechanism, two relatively movable 'd I gages adapted to Ybe{brought into register with points'V on the workat which `the iii-st and the last ot a series ot operations 'or the 'operating mechanism are to be located, and a series of scales adapted to cooperate with the gages'in indic'ating'the adjustment of thespacing mechanism requisite for different series. u

8. A machine having, in combination, means for operating on the work, a work carrier, mechanism 'for advancing the car-` VVrier to space the work' between successive cycles ofi-operation of the operating mechanism, a gage adapted tobe brought intoregister with the point on the worl; held 'by the Carrier fai? hh the last of a Series of CYCles of, operations of the operatingV Y means'is to be located',V and a cooperating -rier to space the work between scale for indicating the required adjustment of the spacngmeehansm. j e ,Y

`9. A jmachine having, in combination, means', torV operating on the work, la Vwork carrier, mechanism'forY advancing the carsuccessive cycles ot operation oft the operating mechanism, a gage Vadaptedto beY brought into register with the point o'n the work held by the carrierV atwhich the last offa series of cycles: of operations of the operating means Y. is to be located, and a series ot cooperating scales for indicating the required setting ot the spacing mechanism for different series.

l0. A buttonho'le vsewing machine having, iny combination, buttonhole sewing mechan'is`1fii,a work carrier,V mechanism for advancinv the carrier to' space the work between t, v 4 L successive'buttonholes, a gage adapted to be l bro-tight into register'ivith the point on the series'.

work held by the carrier a't which the last of aV series of buttonholes is `tobe located, and lcooperating scale for indicating .the

required'setting of the spacing mechanism.

with the gade tov indicate the required set- Y -k Y ,'23 i y ting ot Vthe spacing mechanlsnr for that 'l2QAxmaehine 'having` inV combination, mechanisn'i tor operating oli the work auto- Ymaticspacing iriechanisni, and means i'or dctermining" by each piece ot wdrlythe yadjust- Y of operations ofthe-operating mechanism atV ment of the spacingmeclranism requisite for locating the rst and last of a'. `s'eries of cycles Aselected points thereon.

13. A buttonliole sewing machine having, 1n combination, buttonhole sewing mechanism, automatically acting spacing mecha.-

nism for'spacing the work` between successive buttonhole sewing operations, and means tor determining by each piece 'of work the adjustment of the 'spacing mechanism requisite tor locating theV lastrbutto'nhole of a series at a' selected point Yon the work. Y

'14. A butto'nhole sewing machine having, in, combination, lbuttonhole sewing mechanism, mechanism tor equally spacing the work between buttonhole sewing cycles, and

Vmeans for determining the setting of the spacing mcansrby the points onthe work selected tor the irst and last of a pre-determined series of buttonholes.

l5. A buttonhole sewing machine having, in combination, buttonhole sewing mechanism, mechanism -acting' automatically to space the work equallybetween,buttonhole Asewing cycles, and'means `tor determining the setting of the spacing means by the points o-n the work selected for the rfirst and last of a predetermined series or" buttonholes.

i6. A buttonhole sewing machine having, in combination, buttonhole Sewing mechanism, mechanism acting automatically to space the workto sew a Vseri-es of'buttonholes therein, means for adjusting said'mechanism to vary the spacing, and means "for, enabling an adjustmenty of the spacing mecli` anism to' be secured requisite for locating the first and last buttonholes ot the seriesat points in the worlrwhich are selected prior to the adjustment and may be varying distances apart.

1T. A biittonhole sewing machine having, 'Y

in combination, butto-nhole sewing mechan'ism7 mechanism for spacing` the work to,

sew a series ot buttonholes therein, and means for indicating tlie adjustnjient of the spacing mechanism requisite for locating the first and last bnttonholes ot a seriesA at points in the worlcwliich are selected prior to the sewing and may. bev varying distances apart.

1S. A fmachin-e having, in combination', mechanism 'doing an operation on the work, mechanism acting automatically to space the work betnl'een successive operations thereon, means tor adjusting said mechanism to vary the spacing, and means Vfor. enabling an adjustment o'i'' the spacing mechanism to be se-V cured requisite for locating thefirst and last of the operations ot' the series at points in the work which are selected prior to the adjustment and may be varying distances apart. Y

EUG-ENE J. RAY.

loo 

